The electronic configuration of an element is 1s2,2s2 2p6,3s2 3p3. What is the atomic number of the element, which is present just below the above element in the periodic table?

Question

The electronic configuration of an element is 1s2,2s2 2p6,3s2 3p3. What is the atomic number of the element, which is present just below the above element in the periodic table? (A) 33 (B) 34 (C) 36 (D) 49

Tardigrade Admin · Accepted Answer

The element which present just below this element will have outermost electronic configuration as 4s2 4p3, so its full electronic configuration is 1s2, 2s2 2p6, 3s2 3p6, 4s2, 3d10, 4p3 and hence, its atomic number is 33.

Q. The electronic configuration of an element is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{3}$ . What is the atomic number of the element, which is present just below the above element in the periodic table?

33

34

36

49

The element which present just below this element will have outermost electronic configuration as $4 s^{2} 4 p^{3}$ , so its full electronic configuration is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}, 4 s^{2},$ $3 d^{10}, 4 p^{3}$ and hence, its atomic number is 33.

Q. The electronic configuration of an element is 1s2,2s22p6,3s23p3. What is the atomic number of the element, which is present just below the above element in the periodic table?

33

34

36

49

The element which present just below this element will have outermost electronic configuration as 4s24p3, so its full electronic configuration is 1s2,2s22p6,3s23p6,4s2, 3d10,4p3 and hence, its atomic number is 33.

Q. The electronic configuration of an element is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{3}$ . What is the atomic number of the element, which is present just below the above element in the periodic table?

The element which present just below this element will have outermost electronic configuration as $4 s^{2} 4 p^{3}$ , so its full electronic configuration is $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}, 4 s^{2},$ $3 d^{10}, 4 p^{3}$ and hence, its atomic number is 33.